55 static	kmutex_t	devpoll_lock;	/* lock protecting dev tbl */  variable
154 	mutex_init(&devpoll_lock, NULL, MUTEX_DEFAULT, NULL);  in _init()
157 		mutex_destroy(&devpoll_lock);  in _init()
172 	mutex_destroy(&devpoll_lock);  in _fini()
441 	mutex_enter(&devpoll_lock);  in dpopen()
457 			mutex_exit(&devpoll_lock);  in dpopen()
470 	mutex_exit(&devpoll_lock);  in dpopen()
482 	mutex_enter(&devpoll_lock);  in dpopen()
486 	mutex_exit(&devpoll_lock);  in dpopen()
512 	mutex_enter(&devpoll_lock);  in dpwrite()
516 	mutex_exit(&devpoll_lock);  in dpwrite()
710 	mutex_enter(&devpoll_lock);  in dpioctl()
713 	mutex_exit(&devpoll_lock);  in dpioctl()
930 	mutex_enter(&devpoll_lock);  in dpclose()
934 	mutex_exit(&devpoll_lock);  in dpclose()